Lever-scraper for cleaning plows



(No Model.)

A. W. TUCKER.

LEVER SGRAPER FOROLEANING PLOWS. No. 372,719. Patented Nov. 8, 1887.

N. PETERS, Pbulmbmo ra mr. Walhinglnn. D. C.

Ilwrrnn grates Parana @rricn ARGYLE IV. TUCKER, OF MIDLOTIIIAN, TEXAS.

LEVER-SCRAPER FOR CLEANING PLOWS.

SPECIFICATION forming part of Letters Patent No. 372,719, dated November 8, 1887.

Application filed March 16, 188?.

To aZZ 207207171 it may concern.-

Be it known that I, AncYLn W. TUCKER, a citizen of the United States, residing at Midlothian, in the county of Ellis and State of Texas, have invented new and useful Improvements in Lever-Scrapers for Cleaning Plows, of which the following is a specification.

The invention relates to improvements -in plows, the object being to remove quickly and readily from the mold-board the earth which, in plowing stiff, waxy, or greasy soils, adheres thereto,- and it consists in the construction and novel arrangement of a scraper-blade and of the actuating mechanism therefor, as herein after described, illustrated in the drawings, and pointed out in the claims hereto appended.

In the accompanying drawings, Figure 1 represents a perspective view of a part of a plow having the invention attached to the beam thereof. Fig. 2 represents a side view of the same, showing the pivotal point of the actuating-lever of the scraper and the position of said lever when the device is attached to a hand-plow. Fig. 3 represents a similar side view when the device is attached to a sulkyplow. Fig. 4 is a detail view showing the connection of the scraper standard to the springarm.

Referring to the drawings by letter, A designates the plow-beam; 5, the plow-standard, having its upper end secured to the beam near the heel of the latter, and O the plow point or shovel attached to the lower end of the standard.

D designates the mold-board,attached to the standard above the shovehand of the usual construction.

E is the scrapenblade, having an arm, 6, rising centrally from and at right angles to its upper edge, and F is a stiff spring-bar having one end pivoted or swiveled to the upper end of said standard,so that the blade can turn laterally thereon, and the other end pivoted atf to the lower end of the actuating-lever H. The bar F is pivoted to the plow-bean1 also, but at a point, f, sufficiently distant inward from the pivotal point f. A nut engages the threaded end of the arm 0 above the bar F.

The lever H has its upper end formed into a suitable handle, and at its lower end is provided with a curved portion, 71, which extends Serial X0. 231,177. (No model.)

from the pivotal pointf of the bar F, running first below said bar forward, then upward, and, lastly, rearward to a point, it, whence the lever runs straight outward, as shown.

I and I are respectively two openings through the curved portion of the lever, which openings are equally distant from the pivot f in right lines.

By means of the opening I and pin i,engaging on said opening and in asimilar opening, 1', in the bar F, the lever can be secured in a forwardly-inclined position upon said bar, so that when the device is attached to a sulkyplow the lever-handle is within easy reach from the drivers seat. By passing the pin 2' through the openings 1 in the lever and z" in the bar, the lever can be leaned in a rearwardly-inclined position on the latter, so as to be within easy reach of the driver when the device is attached to a handplow.

Vhen the parts are in position, the lower edge of the scraper-blade inclines downward and rearward as it rests upon the front surface of the mold-board and makes an angle of about forty-five degrees with said surface, the point of the angle being forward. The bar F is pivoted to the side of the plow-beam opposite that to which the mold-board isattached and curves undersaid beam. The said bar,beinga spring, keeps the edge of the scraperblade close against the mold-board in all positions, but holds it more strongly thereon at the upper part. of the mold board, where more force is necessary to start the adhering earth, and when the scraper-blade is raised more earth is on the board. This action is caused by the up per part of the mold-board being nearest to the pivotal point of the spring-bar, which is, consequently, under the greatest compression when the scraper-blade is in that position.

Having described my invention, I claim- 1. In a plow, the combination of the lever I-I, fnlcrumed to the beam, the spring-bar F, having one end operated by the lever and having its free end extending above the moldboard, and the scraper E, attached to the free end of the spring-bar and depending from the same and bearing on the face of the moldboard, substantially as described.

2. In a plow, the combination of the moldboard secured to the plow standard, the scraper-blade with its lower edge impinging against the front surface of the mold-board and provided with an arm rising from its'upper edge,the curved spring-bar having its rear end pivoted or swiveled to the end of said arm and pivoted near its front end to the side of the plow-beam opposite that on which the mold-board is situated, and the lever having its lower end connected to the said bar near its pivotal point and the upper end within easy reach of the driver, substantially as specified.

3. The combination of the plow-standard and the mold-board secured to said standard with the plow-beam, the scraper-blade, the spring-bar pivoted on the beam and having its rear end pivoted or swiveled t0 the scraperblade, and the lever connected to and actuating said bar, substantially as'specified.

ARGYLE \V. TUCKER.

Witnesses:

J. T. TooLEY, W; T. STEWART. 

